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Dortmund Data Bank
Thermophysical Data for Process Design
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DDB#	Name	CAS-RN	Formula
174	Water	7732-18-5	H₂O	Overview	Details
13453	Tetrasodium pyrophosphate	7722-88-5	Na₄O₇P₂	Overview	Details
18149	Disodium dihydrogen pyrophosphate	7758-16-9	H₂Na₂O₇P₂	Overview	Details
1001399	Disodium dihydrogen pyrophosphate	7758-16-9	H₂Na₂O₇P₂	Overview	Details
1001400	Trisodium hydrogen pyrophosphate nonahydrate		Na₃HP₂O₇*9H₂O	Overview	Details
1001401	Disodium dihydrogen pyrophosphate hexahydrate		Na₂H₂P₂O₇*6H₂O	Overview	Details

Search for mixtures containing this mixture as subsystem

Mixture Data

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**Vapor-Liquid Equilibria of Electrolyte Systems (ELE)**
DDB#	Name	13453	18149	1001399	1001400	1001401	Disodium dihydrogen pyrophosphate hexahydrate
174	Water	2	n.a.	n.a.	n.a.	n.a.
13453	Tetrasodium pyrophosphate		n.a.	n.a.	n.a.	n.a.
18149	Disodium dihydrogen pyrophosphate			n.a.	n.a.	n.a.
18149	Disodium dihydrogen pyrophosphate				n.a.	n.a.
1001400	Trisodium hydrogen pyrophosphate nonahydrate					n.a.

**Densities and Volumes of Mixtures, Excess Volumes (VE)**
DDB#	Name	13453	18149	1001399	1001400	1001401	Disodium dihydrogen pyrophosphate hexahydrate
174	Water	4	n.a.	n.a.	n.a.	n.a.
13453	Tetrasodium pyrophosphate		n.a.	n.a.	n.a.	n.a.
18149	Disodium dihydrogen pyrophosphate			n.a.	n.a.	n.a.
18149	Disodium dihydrogen pyrophosphate				n.a.	n.a.
1001400	Trisodium hydrogen pyrophosphate nonahydrate					n.a.

**Salt Solubilities (ESLE)**
DDB#	Name	13453	18149	1001399	1001400	1001401	Disodium dihydrogen pyrophosphate hexahydrate
174	Water	1	n.a.	n.a.	n.a.	n.a.
13453	Tetrasodium pyrophosphate		n.a.	n.a.	n.a.	n.a.
18149	Disodium dihydrogen pyrophosphate			n.a.	n.a.	n.a.
18149	Disodium dihydrogen pyrophosphate				n.a.	n.a.
1001400	Trisodium hydrogen pyrophosphate nonahydrate					n.a.

**Further Thermodynamic Properties (X)**
DDB#	Name	13453	18149	1001399	1001400	1001401	Disodium dihydrogen pyrophosphate hexahydrate
174	Water	1	n.a.	n.a.	n.a.	n.a.
13453	Tetrasodium pyrophosphate		n.a.	n.a.	n.a.	n.a.
18149	Disodium dihydrogen pyrophosphate			n.a.	n.a.	n.a.
18149	Disodium dihydrogen pyrophosphate				n.a.	n.a.
1001400	Trisodium hydrogen pyrophosphate nonahydrate					n.a.

**Total**
DDB#	Name	13453	18149	1001399	1001400	1001401	Disodium dihydrogen pyrophosphate hexahydrate
174	Water	8	n.a.	n.a.	n.a.	n.a.
13453	Tetrasodium pyrophosphate		n.a.	n.a.	n.a.	n.a.
18149	Disodium dihydrogen pyrophosphate			n.a.	n.a.	n.a.
18149	Disodium dihydrogen pyrophosphate				n.a.	n.a.
1001400	Trisodium hydrogen pyrophosphate nonahydrate					n.a.

Dortmund Data Bank Version: February 2024

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